// Token: 0x06001A0D RID: 6669 RVA: 0x000BA974 File Offset: 0x000B8B74
public static bool AreLineSegmentsCrossing(Vector3 pointA1, Vector3 pointA2, Vector3 pointB1, Vector3 pointB2)
{
Vector3 vector = pointA2 - pointA1;
Vector3 vector2 = pointB2 - pointB1;
bool flag = Math3d.ClosestPointsOnTwoLines(pointA1, vector.normalized, pointB1, vector2.normalized, out Vector3 point, out Vector3 point2);
if (flag)
{
int num = Math3d.PointOnWhichSideOfLineSegment(pointA1, pointA2, point);
int num2 = Math3d.PointOnWhichSideOfLineSegment(pointB1, pointB2, point2);
return(num == 0 && num2 == 0);
}
return(false);
}
/// <summary>
/// 一个点在一条线段上的投影点
/// </summary>
/// <param name="linePoint1"></param>
/// <param name="linePoint2"></param>
/// <param name="point"></param>
/// <returns></returns>
public static Vector3 ProjectPointOnLineSegment(Vector3 linePoint1, Vector3 linePoint2, Vector3 point)
{
Vector3 vector = Math3d.ProjectPointOnLine(linePoint1, (linePoint2 - linePoint1).normalized, point);
int num = Math3d.PointOnWhichSideOfLineSegment(linePoint1, linePoint2, vector);
if (num == 0)
{
return(vector);
}
if (num == 1)
{
return(linePoint1);
}
if (num == 2)
{
return(linePoint2);
}
return(Vector3.zero);
}
